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1#!/usr/bin/perl
2###############################################################################
3# #
4# IPFire.org - A linux based firewall #
5# Copyright (C) 2020 IPFire Team <info@ipfire.org> #
6# #
7# This program is free software: you can redistribute it and/or modify #
8# it under the terms of the GNU General Public License as published by #
9# the Free Software Foundation, either version 3 of the License, or #
10# (at your option) any later version. #
11# #
12# This program is distributed in the hope that it will be useful, #
13# but WITHOUT ANY WARRANTY; without even the implied warranty of #
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15# GNU General Public License for more details. #
16# #
17# You should have received a copy of the GNU General Public License #
18# along with this program. If not, see <http://www.gnu.org/licenses/>. #
19# #
20###############################################################################
21
22use strict;
23use POSIX();
24use DBI;
25
26# enable only the following on debugging purpose
27#use warnings;
28#use CGI::Carp 'fatalsToBrowser';
29
30require '/var/ipfire/general-functions.pl';
31require "${General::swroot}/lang.pl";
32require "${General::swroot}/header.pl";
33
34my %color = ();
35my %mainsettings = ();
36&General::readhash("${General::swroot}/main/settings", \%mainsettings);
37&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
38
39# Path and file of the OVPN connections database.
40my $database = "/var/ipfire/ovpn/clients.db";
41
42my %cgiparams=();
43my %logsettings=();
44my %ovpnsettings=();
45
46my $errormessage='';
47
48# Hash wich contains the month numbers and the translated names for easy access.
49my %monthhash = (
50 "1" => "$Lang::tr{'january'}",
51 "2" => "$Lang::tr{'february'}",
52 "3" => "$Lang::tr{'march'}",
53 "4" => "$Lang::tr{'april'}",
54 "5" => "$Lang::tr{'may'}",
55 "6" => "$Lang::tr{'june'}",
56 "7" => "$Lang::tr{'july'}",
57 "8" => "$Lang::tr{'august'}",
58 "9" => "$Lang::tr{'september'}",
59 "10" => "$Lang::tr{'october'}",
60 "11" => "$Lang::tr{'november'}",
61 "12" => "$Lang::tr{'december'}"
62);
63
64# Get current time.
65my ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) = localtime(time);
66
67# Adjust month, because Jan starts as month "0".
68$month = $month+1;
69
70# Adjust year number.
71$year = $year+1900;
72
73# Assign default vaules.
74$cgiparams{'FROM_DAY'} = $mday;
75$cgiparams{'FROM_MONTH'} = $month;
76$cgiparams{'FROM_YEAR'} = $year;
77$cgiparams{'TO_DAY'} = $mday;
78$cgiparams{'TO_MONTH'} = $month;
79$cgiparams{'TO_YEAR'} = $year;
80
81&Header::getcgihash(\%cgiparams);
82
83# Read-in OpenVPN settings and connections.
84&General::readhasharray("${General::swroot}/ovpn/ovpnconfig", \%ovpnsettings);
85
86# Init DB Module and connect to the database.
87my $database_handle = DBI->connect("DBI:SQLite:dbname=$database", "", "", { RaiseError => 1 });
88
89# Generate datestrings for SQL queries.
90my $from_datestring = sprintf '%04d-%02d-%02d', ($cgiparams{"FROM_YEAR"}, $cgiparams{"FROM_MONTH"}, $cgiparams{"FROM_DAY"});
91my $to_datestring = sprintf '%04d-%02d-%02d', ($cgiparams{"TO_YEAR"}, $cgiparams{"TO_MONTH"}, $cgiparams{"TO_DAY"});
92
93my $database_query = qq(
94 SELECT
95 common_name, SUM(
96 STRFTIME('%s', (
97 CASE
98 WHEN DATETIME(COALESCE(disconnected_at, CURRENT_TIMESTAMP), 'localtime') < DATETIME('$to_datestring', 'localtime', 'start of day', '+86399 seconds')
99 THEN DATETIME(COALESCE(disconnected_at, CURRENT_TIMESTAMP), 'localtime')
100 ELSE DATETIME('$to_datestring', 'localtime', 'start of day', '+86399 seconds')
101 END
102 ), 'utc') -
103 STRFTIME('%s', (
104 CASE
105 WHEN DATETIME(connected_at, 'localtime') > DATETIME('$from_datestring', 'localtime', 'start of day')
106 THEN DATETIME(connected_at, 'localtime')
107 ELSE DATETIME('$from_datestring', 'localtime', 'start of day')
108 END
109 ), 'utc')
70e1d587 110 ) AS duration
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111 FROM sessions
112 WHERE
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113 (
114 disconnected_at IS NULL
115 OR
116 DATETIME(disconnected_at, 'localtime') > DATETIME('$from_datestring', 'localtime', 'start of day')
117 )
118 AND
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119 DATETIME(connected_at, 'localtime') < DATETIME('$to_datestring', 'localtime', 'start of day', '+86399 seconds')
120 GROUP BY common_name
70e1d587 121 ORDER BY common_name, duration DESC;
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122);
123
124if ($cgiparams{'CONNECTION_NAME'}) {
125 $database_query = qq(
1242cb01 126 SELECT common_name, DATETIME(connected_at, 'localtime'), DATETIME(disconnected_at, 'localtime'), bytes_received, bytes_sent FROM sessions
3e10b3de 127 WHERE
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128 common_name = '$cgiparams{"CONNECTION_NAME"}'
129 AND (
130 DATETIME(disconnected_at, 'localtime') > DATETIME('$from_datestring', 'localtime', 'start of day')
131 AND
132 DATETIME(connected_at, 'localtime') < DATETIME('$to_datestring', 'localtime', 'start of day', '+86399 seconds')
133 )
134 ORDER BY connected_at;
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135 );
136}
137
138# Prepare SQL statement.
139my $statement_handle = $database_handle->prepare($database_query);
140
141# Execute SQL statement and get retun value if any error happened.
142my $database_return_value = $statement_handle->execute();
143
144# If an error has been returned, assign it to the errorstring value for displaying.
145if($database_return_value < 0) {
146 $errormessage = "$DBI::errstr";
147}
148
149&Header::showhttpheaders();
150
151&Header::openpage($Lang::tr{'ovpn rw connection log'}, 1, '');
152
153&Header::openbigbox('100%', 'left', '', $errormessage);
154
155if ($errormessage) {
156 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
157 print "<font class='base'>$errormessage&nbsp;</font>\n";
158 &Header::closebox();
159}
160
161&Header::openbox('100%', 'left', "$Lang::tr{'settings'}:");
162
163print "<form method='post' action=\"$ENV{'SCRIPT_NAME'}\">\n";
164print "<table width='100%'>\n";
165 print "<tr>\n";
166 print "<td class='base' colspan='2'><b>$Lang::tr{'from'}:</b></td>\n";
167 print "</tr>\n";
168
169 print "<tr>\n";
170 print "<td class='base'>$Lang::tr{'day'}:&nbsp\;\n";
171 &generate_select("FROM_DAY", "days");
172 print "</td>\n";
173
174 print "<td class='base'>$Lang::tr{'month'}:&nbsp\;\n";
175 &generate_select("FROM_MONTH", "months");
176 print "</td>\n";
177
178 print "<td class='base'>$Lang::tr{'year'}:&nbsp\;\n";
179 &generate_select("FROM_YEAR", "years");
180 print "</td>\n";
181 print "</tr>\n";
182
183 print "<tr><td><br></td></tr>\n";
184
185 print "<tr>\n";
186 print "<td class='base' colspan='2'><b>$Lang::tr{'to'}:</b></td>\n";
187 print "</tr>\n";
188
189 print "<tr>\n";
190 print "<td class='base'>$Lang::tr{'day'}:&nbsp\;\n";
191 &generate_select("TO_DAY", "days");
192 print "</td>\n";
193
194 print "<td class='base'>$Lang::tr{'month'}:&nbsp\;\n";
195 &generate_select("TO_MONTH", "months");
196 print "</td>\n";
197
198 print "<td class='base'>$Lang::tr{'year'}:&nbsp\;\n";
199 &generate_select("TO_YEAR", "years");
200 print "</td>\n";
201 print "</tr>\n";
202
203 print "<tr><td><br></td></tr>\n";
204
205 print "<tr>\n";
206 print "<td class='base'>$Lang::tr{'ovpn connection name'}:</td>\n";
207 print "<td class='base' colspan='2'>\n";
208
209 print "<select name='CONNECTION_NAME' size='1'>\n";
6317d55c 210 print "<option value=''>$Lang::tr{'all'}</option>\n";
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211
212 # Loop through all configured OpenVPN connections and sort them by name.
213 foreach my $key (sort { $ovpnsettings{$a}[2] cmp $ovpnsettings{$b}[2] } keys %ovpnsettings) {
214 my $connection_name = $ovpnsettings{$key}[2];
215 my $selected;
216
217 # Skip all non roadwarrior connections.
218 next unless ($ovpnsettings{"$key"}[3] eq "host");
219
220 # Check and mark the selected one.
221 if ($connection_name eq "$cgiparams{'CONNECTION_NAME'}") {
222 $selected = "selected";
223 }
224
225 print "<option value='$connection_name' $selected>$connection_name</option>\n";
226 }
227
228 print "</select>\n";
229 print "</td>\n";
230 print "</tr>\n";
231
232 print "<tr>\n";
233 print "<td width='100%' align='right' colspan='3'><input type='submit' name='ACTION' value='$Lang::tr{'update'}'></td>\n";
234 print "</tr>\n";
235print "</table>\n";
236print "</form>\n";
237
238&Header::closebox();
239
240&Header::openbox('100%', 'left', $Lang::tr{'log'});
241
242my $lines = 0;
243
244print "<table width='100%' class='tbl'>";
245
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246my $col = "bgcolor='$color{'color20'}'";
247
248 print "<tr>\n";
249 print "<td width='40%' $col><b>$Lang::tr{'ovpn connection name'}</b></td>\n";
250
251 if ($cgiparams{'CONNECTION_NAME'}) {
252 print "<td width='20%' $col><b>$Lang::tr{'connected'}</b></td>\n";
253 print "<td width='20%' $col><b>$Lang::tr{'disconnected'}</b></td>\n";
254 print "<td width='10%' $col><b>$Lang::tr{'recieved'}</b></td>\n";
255 print "<td width='10%' $col><b>$Lang::tr{'sent'}</b></td>\n";
256 } else {
257 print "<td $col><b>$Lang::tr{'total connection time'}</b>\n";
258 }
259
260 print "</tr>\n";
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261
262while(my @row = $statement_handle->fetchrow_array()) {
263 # Assign some nice to read variable names for the DB fields.
264 my $connection_name = $row[0];
265 my $connection_open_time = $row[1];
266 my $connection_close_time = $row[2];
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267 my $connection_bytes_recieved = &General::formatBytes($row[3]);
268 my $connection_bytes_sent = &General::formatBytes($row[4]);
3e10b3de 269
d5b6023c 270 # Colorize columns.
3e10b3de 271 if ($lines % 2) {
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272 $col="bgcolor='$color{'color20'}'";
273 } else {
3e10b3de 274 $col="bgcolor='$color{'color22'}'";
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275 }
276
277 print "<tr>\n";
278 print "<td width='40%' $col>$connection_name</td>\n";
279
280 if ($cgiparams{'CONNECTION_NAME'}) {
281 print "<td width='20%' $col>$connection_open_time</td>\n";
282 print "<td width='20%' $col>$connection_close_time</td>\n";
283 print "<td width='10%' $col>$connection_bytes_recieved</td>\n";
284 print "<td width='10%' $col>$connection_bytes_sent</td>\n";
3e10b3de 285 } else {
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286 # Convert total connection time into human-readable format.
287 my $total_time = &General::format_time($row[1]);
288
289 print "<td $col>$total_time</td>\n";
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290 }
291
d5b6023c 292 print "</tr>\n";
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293
294 # Increase lines count.
295 $lines++;
c7d55d7f 296}
3e10b3de 297
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298# If nothing has been fetched, the amount of lines is still zero.
299# In this case display a hint about no data.
300unless ($lines) {
301 print "<tr><td bgcolor='$color{'color22'}' colspan='5' align='center'>$Lang::tr{'no entries'}</td></tr>\n";
302}
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303
304print "</table><br>\n";
305
306&Header::closebox();
307
308# Close database connection.
309$database_handle->disconnect();
310
311&Header::closebigbox();
312
313&Header::closepage();
314
315#
316## Function for easy select generation.
317#
318sub generate_select($$) {
319 my ($name, $type) = @_;
320
321 my $start = 1;
322 my $stop;
323
324 # Adjust start and stop by the given type.
325 if ($type eq "days") {
326 $stop = 31;
327 } elsif ($type eq "months") {
328 $stop = 12;
329 } elsif ($type = "years") {
330 $stop = $year;
331 $start = $stop - 10;
332 }
333
334 # Print select HTML tag.
335 print "<select name='$name' size='1'>\n";
336
337 # Loop through the range.
338 for ( my $i = $start; $i <= $stop; $i++) {
339 print "\t<option ";
340
341 # Check and select the current processed item.
342 if ($i == $cgiparams{$name}) {
343 print 'selected="selected" ';
344 }
345
346 # Check if months are processed and display the corresponding names.
347 if ($type eq "months") {
348 print "value='$i'>$monthhash{$i}</option>\n";
349 } else {
350 print "value='$i'>$i</option>\n";
351 }
352 }
353
354 # Close select HTML tag.
355 print "</select>\n\n";
356}